... long not fade 2.Inset:Fine pure crystal zircon Czech drill, made by perfect cutting technology, make the lightrefraction degrees ... oil dripping, dripping, paint, grinding, sandblasting Inlay material categories:Zircon, Czech, natural crystal, peach heart, opal, acrylic, horse's eye, ... 7 colour, glaze toothipick, etc The Czech drill:A diamond. Diamond is cutting the drilling stone faces ...